.exercise {
    flex-direction: row;
    margin-top: 6px;
    .nav_left {
        display: inline-flex;
        flex-wrap: wrap;
        flex-direction: row;
        width: 246px;
        height: 140px;
        background-color: #f9f9f9;
        transform: translate(7px);
        margin-right: 12px;
        margin-bottom: 33px;
        li {
            display: inline-flex;
            width: 123px;          
            flex-direction: column;
            justify-content: center;
            align-items: center;

            img {
                width: 24px;
                height: 24px;
            }
            a {
                text-decoration: none;
                color: black;
            }
        }
    }
}